John charles meyers



(No Model.)

J. o. MEYERS. PUMPING AND MEASURING APPARATUS.

No. 470,205. Patented Mar. 8, 1892.

'lm n o A a UNITED STATES PATENT OFFICE.

JOHN CHARLES MEYERS, OF DUBLIN, IRELAND.

PUMPING AND MEASURING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 470,205, dated March 8,1892.

Application tiled December 4,1890.' Serial No. 373,580. (No modeLlPatented in England May Z. 1890, No. 6,751; in France December 3, 1890,No. 209,974,l in Belgium December 4, 1890, No. 92,981, and inAnstria-Hungary June 22, 1891,

To all whom t may concer-71,.-

Be it known that I, JOHN CHARLES MEYERs, of Dublin, Ireland, haveinvented a certain new and useful Improvement in Pumping and MeasuringApparatus for Liquids; and I do hereby declare the following to be afull, clear, and exact description of the invention, which will enableothers skilled in the art to which it apnertains to make and use thesame.

This invention has reference to new and improved apparatus whereby theoperation of transferring liquids from one vessel to another andmeasuring the same may be carried on in a safe and convenient manner andWithout waste. It is especially designed to facilitate the supplying ofoil to lamps for domestic or other purposes, as hereinafter described.

It has been patented in England in myname, dated May 2, 1890, No. 6,751; in France, dated December 3, 1890, No. 209,974,` and in Belgium,dated December 4, 1890, No. 92,981. An applica tion was made inAustria-Hungary, dated December el, 1890, and granted June 22,1891, No.9,329.

The nature, construction, and operation of my invention will be readilyunderstood on reference to the accompanying drawings.

Figure 1 is an elevation, and Fig. 2 a vertical section, showingimportant parts of the improvcdapparatus. Fig. 3 shows itsapplication,and Fig. 4 is a similar View showing the addition of agraduated measuring glass which makes the device complete.

Similar letters of reference designate corresponding parts in all thefigures.

In the construction of the apparatus d is an outer tube of suitablemetal provided at the top with a cup or cone b, to which is tted anindia-rubber cap c, having a hemispherical form with a thickened edge,as shown in Fig. 2. This rubber bulb or cap is held securely in positionby a ring c', which 1s first placed in the cap before the latter 1spressed into the cup or cone. By' this means the cap is very securelyheld, but can be readily removed or renewed when required. In the lowerend of the tube is an aperture closed by a marble d and loosely helddown by a grated horizontal partition a', as shown. lVithin this tube isarranged a tube e, provided with an exit-port f at the top, and at itslower end with an elongated chamber, in the bottom of which is anaperture closed by a marble g, loosely held down bya grated partitionc', as shown.

As thus constructed, the apparatus may be introduced to any vessel fromwhich it is desired to draw off liquids, and its action is as follows:Upon pressing the cap an impulse of air will pass down the annular spaceand escape through theinner tube by lifting the marble g, which willimmediately resume its seat. As the india-rubber cap re-expands, (therebeing now a partial vacuum in the annular space,) the liquid Will runthrough the valve d, rising in the annular space until the next pressureof the cap, which, acting on the liquid thus received in the annularspace, causes it to ascend the inner tube through the valve g (it cannotreturn to the vessel owing to the closing of the valve CZ meantime) andescape through the exit pipe. On the second re-expansion of the cap theoperation is repeated, and thus the iiow of liquid is maintained.

Fig. 3 represents the application of the apparatus to an ordinarycistern-for example, a domestic oil-vessel. The top of this vessel isslightly inclined toward the center and the pump apparatus may be turnedhalf round, so as to enable drops which may fall from the exit-pipe toreturn tothe cistern through the filling-aperture h.

Fig. 4: shows the application of the apparatus in combination with adevice for measuring purposes. Between the exit-pipe f and an arm f ismounted a glass cylinder f2, which is graduated according to pleasure,and is provided at its lower end with an ordinary tap. By thisarrangement certain quantities of liquid can be pumped into and measuredin the cylinder, whereupon an empty vessel is applied and the tap turnedand the measured quantity thus drained off. The pump apparatus in thiscase may also be turned halfround, as indicated in dotted lines, so asto allow drops to return to the original vessel and thus obviate wasteor dropping of liquids on the door.

It is obvious that myinvention maybe used on the Siphon principle whendischarging liq- IOO uid from one vessel to another of a lower level.For this purpose it is only necessary to prolong the length of theexit-pipe by the addition of a exible or other tube, and once thecurrent is established in the manner above described the liquid willflow continuously. To arrest the tlow,air may be admitted through asuitable valve formed in the exit-pipe. In this respect the apparatusmay be used with advantage for discharging casks, barrels, and such likevessels.

Having thus described the nature of Iny said invention, I declare thatwhat I claim 1s- 1. In a device of the class described, the combinationof an external tube having an enlarged upper end with a lip at its upperedge, an elastic bulb in the form of a hemisphere and havinga thickenedor beaded edge, and a ring provided at its upper edge with a lip adaptedto engage the inner side of the thickened or beaded edge of said elasticbulb and to clamp the latter against the beaded upper edge of theexternal tube, substantially as and for the purpose set forth.

2. In a pu1np,an elastic bulb c in the form of a hemisphere with athickened rim, the tube a, having the enlargement b at the upper endwith an internallip adapted to apply o n the outer face of the bulb cand take hold above such thickened rim, and the internal ring c',adapted to apply on the inner face and similarly engage above thethickened rim thereon, in combination with each other and with the innertube e and valves (l and g, all

. arranged to serve as herein specified.

Dated this 20th day of November, 1890.

JOHN CHARLES MEYERS.

ITitliesses:

ALEX. J. REID,

U. S. Consul. ANGELO Fama,

C'. E., Dubln, Ireland.

